Internal Relay Comms Card with DB-9 Connector
Internal Relay Comms Card with DB-9 Connector is backordered and will ship as soon as it is back in stock.
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The Relay Card (PSAS400) provides VFC (Volt Free Contact) relays that change state upon UPS events. This type of card is often used when current loop communications are required for devices such as BMS (Building Management Systems), Access Control Alarm Panels or Industrial PLCs. User selectable normally open (default) or normally closed contacts